Assertion: During the luteal phase of the menstrual cycle, the Graafian follicle is transformed into a transitory endocrine gland called the corpus luteum.
Reason: Corpus luteum secretes a large amount of Oestrogen, which is essential for the maintenance of the endometrium.
(a) Assertion and Reason are true, Reason is the correct explanation of Assertion.
(b) Assertion and Reason are true, Reason is not the correct explanation of Assertion.
(c) Assertion is true, Reason is false.
(d) Both Assertion and Reason are false.
